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ORCIDAlexander Zipf
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- affiliation: Heidelberg University, Germany
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2020 – today
- 2024
[j94]Abdulkadir Memduhoglu
, Nir Fulman, Alexander Zipf:
Enriching building function classification using Large Language Model embeddings of OpenStreetMap Tags. Earth Sci. Informatics 17(6): 5403-5418 (2024)- [j93]Tessio Novack, Leonard Vorbeck, Alexander Zipf:
An investigation of the temporality of OpenStreetMap data contribution activities. Geo spatial Inf. Sci. 27(2): 259-275 (2024) - [c47]Nir Fulman, Abdulkadir Memduhoglu, Alexander Zipf:
Evidence for Systematic Bias in the Spatial Memory of Large Language Models. GeoExT@ECIR 2024: 57-62 - [c46]Steffen Knoblauch, Levi Szamek, Jonas Wenk, Iddy Chazua, Innocent Maholi, Maciej Adamiak, Sven Lautenbach, Alexander Zipf:
UAV-Assisted Municipal Solid Waste Monitoring for Informed Disposal Decisions. GoodIT 2024: 105-113 - [i5]Nir Fulman, Abdulkadir Memduhoglu, Alexander Zipf:
Distortions in Judged Spatial Relations in Large Language Models: The Dawn of Natural Language Geographic Data? CoRR abs/2401.04218 (2024) - [i4]Maciej Adamiak, Yulia Grinblat, Julian Psotta, Nir Fulman, Himshikhar Mazumdar, Shiyu Tang, Alexander Zipf:
Deep Learning Enhanced Road Traffic Analysis: Scalable Vehicle Detection and Velocity Estimation Using PlanetScope Imagery. CoRR abs/2410.14698 (2024) - [i3]Sukanya Randhawa, Eren Aygun, Guntaj Randhawa, Benjamin Herfort, Sven Lautenbach, Alexander Zipf:
Paved or unpaved? A Deep Learning derived Road Surface Global Dataset from Mapillary Street-View Imagery. CoRR abs/2410.19874 (2024) - 2023
- [j92]Steffen Knoblauch, Hao Li, Sven Lautenbach, Yara Elshiaty, Antônio A. de A. Rocha, Bernd Resch, Dorian Arifi, Thomas Jänisch, Ivonne Morales, Alexander Zipf:
Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegypti. Int. J. Appl. Earth Obs. Geoinformation 119: 103304 (2023) - [j91]Veit Ulrich, Josephine Brückner, Michael Schultz, Sanam Noreen Vardag, Christina Ludwig, Johannes Fürle, Mohammed Zia, Sven Lautenbach, Alexander Zipf:
Private Vehicles Greenhouse Gas Emission Estimation at Street Level for Berlin Based on Open Data. ISPRS Int. J. Geo Inf. 12(4): 138 (2023) - [c45]Hao Li, Zhendong Yuan, Gabriel Dax, Gefei Kong, Hongchao Fan, Alexander Zipf, Martin Werner:
Semi-Supervised Learning from Street-View Images and OpenStreetMap for Automatic Building Height Estimation. GIScience 2023: 7:1-7:15 - [c44]Alexander Zipf:
Using VGI for Social Good: Potentials and Pitfalls for Using OSM for Humanitarian Aid and Climate Mitigation. GISTAM 2023: 7 - [c43]Sukanya Randhawa, Guntaj Randhawa, Olena Sivak, Johannes Zech, Maria Martin, Alexander Zipf, Yuze Li:
Multiscale Multifeature Vision Learning for Scalable and Efficient Wastewater Treatment Plant Detection using Hi-Res Satellite Imagery and OSM. UrbanAI@SIGSPATIAL 2023: 10-21 - [d3]Steffen Knoblauch, Hao Li, Sven Lautenbach, Yara Elshiaty, Antônio A. de A. Rocha, Bernd Resch, Dorian Arifi, Thomas Jänisch, Ivonne Morales, Alexander Zipf:
Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegpyti [Research Data]. 1.0. heiDATA, 2023 [all versions]
- [d2]Steffen Knoblauch, Hao Li, Sven Lautenbach, Yara Elshiaty, Antônio A. de A. Rocha, Bernd Resch, Dorian Arifi, Thomas Jänisch, Ivonne Morales, Alexander Zipf:
Semi-supervised water tank detection to support vector control of emerging infectious diseases transmitted by Aedes Aegpyti [Research Data]. 1.1. heiDATA, 2023 [all versions] - [i2]Hao Li, Zhendong Yuan, Gabriel Dax, Gefei Kong, Hongchao Fan, Alexander Zipf, Martin Werner:
Semi-supervised Learning from Street-View Images and OpenStreetMap for Automatic Building Height Estimation. CoRR abs/2307.02574 (2023) - [i1]Danfeng Hong, Bing Zhang, Hao Li, Yuxuan Li, Jing Yao, Chenyu Li, Martin Werner, Jocelyn Chanussot, Alexander Zipf, Xiao Xiang Zhu:
Cross-City Matters: A Multimodal Remote Sensing Benchmark Dataset for Cross-City Semantic Segmentation using High-Resolution Domain Adaptation Networks. CoRR abs/2309.16499 (2023) - 2022
- [j90]Hao Li, Johannes Zech, Danfeng Hong, Pedram Ghamisi, Michael Schultz, Alexander Zipf:
Leveraging OpenStreetMap and Multimodal Remote Sensing Data with Joint Deep Learning for Wastewater Treatment Plants Detection. Int. J. Appl. Earth Obs. Geoinformation 110: 102804 (2022) - [j89]Oliver Fritz, Sabrina Marx, Benjamin Herfort, Soraya Kaiser, Moritz Langer, Josefine Lenz, Christian Thiel, Alexander Zipf:
Das Potenzial von Citizen Science für die Kartierung von Landschaftsveränderungen in arktischen Permafrostregionen / The Potential of Citizen Science for Mapping Landscape Change in Arctic Permafrost Regions. AGIT Journal Angew. Geoinformatik 8: 30-40 (2022) - [j88]Mohammed Zia, Johannes Fürle, Christina Ludwig, Sven Lautenbach, Stefan Gumbrich, Alexander Zipf:
SocialMedia2Traffic: Derivation of Traffic Information from Social Media Data. ISPRS Int. J. Geo Inf. 11(9): 482 (2022) - [j87]Hao Li, Benjamin Herfort, Sven Lautenbach, Jiaoyan Chen, Alexander Zipf:
Improving OpenStreetMap missing building detection using few-shot transfer learning in sub-Saharan Africa. Trans. GIS 26(8): 3125-3146 (2022) - [j86]Hao Li, Zhendong Yuan, Tessio Novack, Wei Huang, Alexander Zipf:
Understanding spatiotemporal trip purposes of urban micro-mobility from the lens of dockless e-scooter sharing. Comput. Environ. Urban Syst. 96: 101848 (2022) - [c42]Alexander Zipf, Amandaus Butzer, Marcel Reinmuth, Michael Auer, Benjamin Herfort, Adam Rousell, Sven Lautenbach, Stefan Gumbrich:
OpenStreetMap Tools for Humanitarian Aid. GEOINFO 2022: 441-446 - 2021
- [j85]Hao Li, Johannes Zech, Christina Ludwig, Sascha Fendrich, Aurélie Shapiro, Michael Schultz, Alexander Zipf:
Automatic mapping of national surface water with OpenStreetMap and Sentinel-2 MSI data using deep learning. Int. J. Appl. Earth Obs. Geoinformation 104: 102571 (2021) - [j84]Oliver Fritz, Michael Auer, Alexander Zipf:
Entwicklung eines Regressionsmodells für die Vollständigkeitsanalyse des globalen OpenStreetMap- Datenbestands an Nahverkehrs-Busstrecken / Development of a Regression Model for the Analysis of Local Bus Route Data Completeness on OpenStreetMap. AGIT Journal Angew. Geoinformatik 7: 239-248 (2021) - [j83]Xuke Hu, Alexey Noskov, Hongchao Fan, Tessio Novack, Hao Li, Fuqiang Gu, Jianga Shang, Alexander Zipf:
Tagging the main entrances of public buildings based on OpenStreetMap and binary imbalanced learning. Int. J. Geogr. Inf. Sci. 35(9): 1773-1801 (2021) - [j82]Carolin Klonner, Maximilian Hartmann, Rebecca Dischl, Lily Djami, Liana O. Anderson, Martin Raifer, Fernanda Lima-Silva, Lívia Castro Degrossi, Alexander Zipf, João Porto de Albuquerque:
The Sketch Map Tool Facilitates the Assessment of OpenStreetMap Data for Participatory Mapping. ISPRS Int. J. Geo Inf. 10(3): 130 (2021) - [j81]Moritz Schott, Asher Yair Grinberger, Sven Lautenbach, Alexander Zipf:
The Impact of Community Happenings in OpenStreetMap - Establishing a Framework for Online Community Member Activity Analyses. ISPRS Int. J. Geo Inf. 10(3): 164 (2021) - [j80]Christina Ludwig, Robert Hecht, Sven Lautenbach, Martin Schorcht, Alexander Zipf:
Mapping Public Urban Green Spaces Based on OpenStreetMap and Sentinel-2 Imagery Using Belief Functions. ISPRS Int. J. Geo Inf. 10(4): 251 (2021) - [j79]Raphael Witt, Lukas Loos, Alexander Zipf:
Analysing the Impact of Large Data Imports in OpenStreetMap. ISPRS Int. J. Geo Inf. 10(8): 528 (2021) - [j78]Xuke Hu, Hongchao Fan, Alexey Noskov, Zhiyong Wang, Alexander Zipf, Fuqiang Gu, Jianga Shang:
Room semantics inference using random forest and relational graph convolutional networks: A case study of research building. Trans. GIS 25(1): 71-111 (2021) - [j77]Christina Ludwig, Sascha Fendrich, Alexander Zipf:
Regional variations of context-based association rules in OpenStreetMap. Trans. GIS 25(2): 602-621 (2021) - [j76]Asher Yair Grinberger, Moritz Schott, Martin Raifer, Alexander Zipf:
An analysis of the spatial and temporal distribution of large-scale data production events in OpenStreetMap. Trans. GIS 25(2): 622-641 (2021) - [j75]Zhiyong Wang, Tessio Novack, Yingwei Yan, Alexander Zipf:
Quiet Route Planning for Pedestrians in Traffic Noise Polluted Environments. IEEE Trans. Intell. Transp. Syst. 22(12): 7573-7584 (2021) - [c41]Christina Ludwig, Sven Lautenbach, Eva-Marie Schömann, Alexander Zipf:
Comparison of Simulated Fast and Green Routes for Cyclists and Pedestrians. GIScience (II) 2021: 3:1-3:15 - 2020
- [j74]Xuke Hu, Lei Ding, Jianga Shang, Hongchao Fan, Tessio Novack, Alexey Noskov, Alexander Zipf:
Data-driven approach to learning salience models of indoor landmarks by using genetic programming. Int. J. Digit. Earth 13(11): 1230-1257 (2020) - [j73]Yingwei Yan, Chen-Chieh Feng, Wei Huang, Hongchao Fan, Yi-Chen Wang, Alexander Zipf:
Volunteered geographic information research in the first decade: a narrative review of selected journal articles in GIScience. Int. J. Geogr. Inf. Sci. 34(9): 1765-1791 (2020) - [j72]Tessio Novack, Leonard Vorbeck, Heinrich Lorei, Alexander Zipf:
Towards Detecting Building Facades with Graffiti Artwork Based on Street View Images. ISPRS Int. J. Geo Inf. 9(2): 98 (2020) - [j71]Hao Li, Pedram Ghamisi, Behnood Rasti, Zhaoyan Wu, Aurélie Shapiro, Michael Schultz, Alexander Zipf:
A Multi-Sensor Fusion Framework Based on Coupled Residual Convolutional Neural Networks. Remote. Sens. 12(12): 2067 (2020) - [c40]Alexander Zipf:
Leveraging User Generated Geoinformation for Humanitarian Aid: Potentials and Challenges. GISTAM 2020: 5 - [d1]Christina Ludwig, Robert Hecht, Sven Lautenbach, Martin Schorcht, Alexander Zipf:
Mapping Public Urban Green Spaces based on OpenStreetMap and Sentinel-2 imagery using Belief Functions: Data and Source Code. heiDATA, 2020
2010 – 2019
- 2019
- [j70]Yingwei Yan, Michael Schultz, Alexander Zipf:
An exploratory analysis of usability of Flickr tags for land use/land cover attribution. Geo spatial Inf. Sci. 22(1): 12-22 (2019) - [j69]Xuke Hu, Hongchao Fan, Alexey Noskov, Alexander Zipf, Zhiyong Wang, Jianga Shang:
Feasibility of Using Grammars to Infer Room Semantics. Remote. Sens. 11(13): 1535 (2019) - [j68]Benjamin Herfort, Hao Li, Sascha Fendrich, Sven Lautenbach, Alexander Zipf:
Mapping Human Settlements with Higher Accuracy and Less Volunteer Efforts by Combining Crowdsourcing and Deep Learning. Remote. Sens. 11(15): 1799 (2019) - [j67]Jiaoyan Chen, Yan Zhou, Alexander Zipf, Hongchao Fan:
Deep Learning From Multiple Crowds: A Case Study of Humanitarian Mapping. IEEE Trans. Geosci. Remote. Sens. 57(3): 1713-1722 (2019) - 2018
- [j66]Michael Auer, Melanie Eckle, Sascha Fendrich, Fabian Kowatsch, Lukas Loos, Sabrina Marx, Martin Raifer, Moritz Schott, Rafael Troilo, Alexander Zipf:
Ohsome - eine Plattform zur Analyse raumzeitlicher Entwicklungen von OpenStreetMap-Daten für intrinsische QualitätsbewertungenOhsome - An OpenStreetMap History Analytics Platform for Intrinsic Quality Assessments. AGIT Journal Angew. Geoinformatik 4: 162-167 (2018) - [j65]Ming Li, René Westerholt, Hongchao Fan, Alexander Zipf:
Assessing spatiotemporal predictability of LBSN: a case study of three Foursquare datasets. GeoInformatica 22(3): 541-561 (2018) - [j64]Yingwei Yan, Chiao-Ling Kuo, Chen-Chieh Feng, Wei Huang, Hongchao Fan, Alexander Zipf:
Coupling maximum entropy modeling with geotagged social media data to determine the geographic distribution of tourists. Int. J. Geogr. Inf. Sci. 32(9): 1699-1736 (2018) - [j63]Ming Li, René Westerholt, Alexander Zipf:
Do people communicate about their whereabouts? Investigating the relation between user-generated text messages and Foursquare check-in places. Geo spatial Inf. Sci. 21(3): 159-172 (2018) - [j62]Amin Mobasheri, Alexander Zipf, Louise Francis:
OpenStreetMap data quality enrichment through awareness raising and collective action tools - experiences from a European project. Geo spatial Inf. Sci. 21(3): 234-246 (2018) - [j61]Stefan Hahmann, Jakob Miksch, Bernd Resch, Johannes Lauer, Alexander Zipf:
Routing through open spaces - A performance comparison of algorithms. Geo spatial Inf. Sci. 21(3): 247-256 (2018) - [j60]Tessio Novack, Robin Peters, Alexander Zipf:
Graph-Based Matching of Points-of-Interest from Collaborative Geo-Datasets. ISPRS Int. J. Geo Inf. 7(3): 117 (2018) - [j59]Chiao-Ling Kuo, Ta-Chien Chan, I-Chun Fan, Alexander Zipf:
Efficient Method for POI/ROI Discovery Using Flickr Geotagged Photos. ISPRS Int. J. Geo Inf. 7(3): 121 (2018) - [j58]Michael Auer, Alexander Zipf:
3D WebGIS: From Visualization to Analysis. An Efficient Browser-Based 3D Line-of-Sight Analysis. ISPRS Int. J. Geo Inf. 7(7): 279 (2018) - [j57]Stefan Scholz, Paul Knight, Melanie Eckle, Sabrina Marx, Alexander Zipf:
Volunteered Geographic Information for Disaster Risk Reduction - The Missing Maps Approach and Its Potential within the Red Cross and Red Crescent Movement. Remote. Sens. 10(8): 1239 (2018) - [j56]Amin Mobasheri, Haosheng Huang, Lívia Castro Degrossi, Alexander Zipf:
Enrichment of OpenStreetMap Data Completeness with Sidewalk Geometries Using Data Mining Techniques. Sensors 18(2): 509 (2018) - [j55]Tessio Novack, Zhiyong Wang, Alexander Zipf:
A System for Generating Customized Pleasant Pedestrian Routes Based on OpenStreetMap Data. Sensors 18(11): 3794 (2018) - [j54]Lívia Castro Degrossi, João Porto de Albuquerque, Roberto dos Santos Rocha, Alexander Zipf:
A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information. Trans. GIS 22(2): 542-560 (2018) - [c39]René Westerholt, Mathias Gröbe, Alexander Zipf, Dirk Burghardt:
Towards the Statistical Analysis and Visualization of Places (Short Paper). GIScience 2018: 63:1-63:7 - [c38]Michael Auer, Melanie Eckle, Sascha Fendrich, Luisa Griesbaum, Fabian Kowatsch, Sabrina Marx, Martin Raifer, Moritz Schott, Rafael Troilo, Alexander Zipf:
Towards Using the Potential of OpenStreetMap History for Disaster Activation Monitoring. ISCRAM 2018 - 2017
- [j53]Michael Schultz, Janek Voss, Michael Auer, Sarah Carter, Alexander Zipf:
Open land cover from OpenStreetMap and remote sensing. Int. J. Appl. Earth Obs. Geoinformation 63: 206-213 (2017) - [j52]Janek Voss, Michael Auer, Michael Schultz, Alexander Zipf:
Einsatz von OpenStreetMap-Daten zur Erstellung von Landnutzungsprodukten am Beispiel von OSM Landuse Landcover. AGIT Journal Angew. Geoinformatik 3: 79-87 (2017) - [j51]Hongchao Fan, Alexander Zipf, Hangbin Wu:
Detecting repetitive structures on building footprints for the purposes of 3D modeling and reconstruction. Int. J. Digit. Earth 10(8): 785-797 (2017) - [j50]Clemens Jacobs, Alexander Zipf:
Completeness of citizen science biodiversity data from a volunteered geographic information perspective. Geo spatial Inf. Sci. 20(1): 3-13 (2017) - [j49]Franz-Benjamin Mocnik, Alexander Zipf, Martin Raifer:
The OpenStreetMap folksonomy and its evolution. Geo spatial Inf. Sci. 20(3): 219-230 (2017) - [j48]Luisa Griesbaum, Melanie Eckle, Benjamin Herfort, Martin Raifer, Alexander Zipf:
Partizipative Methoden zur Erfassung und Verarbeitung von Geoinformationen. HMD Prax. Wirtsch. 54(4): 563-574 (2017) - [j47]Adam Rousell, Alexander Zipf:
Towards a Landmark-Based Pedestrian Navigation Service Using OSM Data. ISPRS Int. J. Geo Inf. 6(3): 64 (2017) - [j46]Yingwei Yan, Melanie Eckle, Chiao-Ling Kuo, Benjamin Herfort, Hongchao Fan, Alexander Zipf:
Monitoring and Assessing Post-Disaster Tourism Recovery Using Geotagged Social Media Data. ISPRS Int. J. Geo Inf. 6(5): 144 (2017) - [j45]David Jonietz, Vyron Antoniou, Linda See, Alexander Zipf:
Highlighting Current Trends in Volunteered Geographic Information. ISPRS Int. J. Geo Inf. 6(7): 202 (2017) - [j44]Wei Huang, Hongchao Fan, Alexander Zipf:
Towards Detecting the Crowd Involved in Social Events. ISPRS Int. J. Geo Inf. 6(10): 305 (2017) - [c37]Lívia Castro Degrossi, João Porto de Albuquerque, Camilo Ernesto Restrepo-Estrada, Amin Mobasheri, Alexander Zipf:
Exploring the geographical context for quality assessment of VGI in flood management domain. AMCIS 2017 - [c36]Lívia Castro Degrossi, João Porto de Albuquerque, Roberto dos Santos Rocha, Alexander Zipf:
A Framework of Quality Assessment Methods for Crowdsourced Geographic Information: a Systematic Literature Review. ISCRAM 2017 - [c35]Melanie Eckle, Benjamin Herfort, Yingwei Yan, Chiao-Ling Kuo, Alexander Zipf:
Towards using Volunteered Geographic Information to monitor post-disaster recovery in tourist destinations. ISCRAM 2017 - [c34]Jiaoyan Chen, Alexander Zipf:
DeepVGI: Deep Learning with Volunteered Geographic Information. WWW (Companion Volume) 2017: 771-772 - 2016
- [j43]Michael Auer, Lukas Loos, Alexander Zipf:
MayaArch3D - webbasierte archäologische 3D-Visualisierung und Analyse. AGIT Journal Angew. Geoinformatik 2: 25-29 (2016) - [j42]Enrico Steiger, Maksim Rylov, Alexander Zipf:
Echtzeitverkehrslage basierend auf OSM-Daten im OpenRouteService. AGIT Journal Angew. Geoinformatik 2: 264-267 (2016) - [j41]Stefan Hahmann, Alexander Zipf, Adam Rousell, Amin Mobasheri, Lukas Loos, Maxim A. Rylov, Enrico Steiger, Johannes Lauer:
GIS-Werkzeuge zur Verbesserung der barrierefreien Routenplanung aus dem Projekt CAP4Access. AGIT Journal Angew. Geoinformatik 2: 328-333 (2016) - [j40]Melanie Eckle, João Porto de Albuquerque, Benjamin Herfort, Alexander Zipf:
Entscheidungsunterstützung im Hochwassermanagement - Integration von Kritischer Infrastruktur und Notfallrouting auf der Basis freier Geodaten. AGIT Journal Angew. Geoinformatik 2: 412-417 (2016) - [j39]Hongchao Fan, Bisheng Yang, Alexander Zipf, Adam Rousell:
A polygon-based approach for matching OpenStreetMap road networks with regional transit authority data. Int. J. Geogr. Inf. Sci. 30(4): 748-764 (2016) - [j38]Enrico Steiger, Bernd Resch, Alexander Zipf:
Exploration of spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks. Int. J. Geogr. Inf. Sci. 30(9): 1694-1716 (2016) - [j37]Anran Yang, Hongchao Fan, Ning Jing, Yeran Sun, Alexander Zipf:
Temporal Analysis on Contribution Inequality in OpenStreetMap: A Comparative Study for Four Countries. ISPRS Int. J. Geo Inf. 5(1): 5 (2016) - [j36]Ahmed Loai Ali, Nuttha Sirilertworakul, Alexander Zipf, Amin Mobasheri:
Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap. ISPRS Int. J. Geo Inf. 5(6): 87 (2016) - [j35]David Jonietz, Alexander Zipf:
Defining Fitness-for-Use for Crowdsourced Points of Interest (POI). ISPRS Int. J. Geo Inf. 5(9): 149 (2016) - [c33]Paulo Dias Almeida, Jorge Gustavo Rocha, Andrea Ballatore, Alexander Zipf:
Where the Streets Have Known Names. ICCSA (4) 2016: 1-12 - [c32]Melanie Eckle, João Porto de Albuquerque, Benjamin Herfort, Alexander Zipf, Richard Leiner, Rüdiger Wolff, Clemens Jacobs:
Leveraging OpenStreetMap to Support Flood Risk Management in Municipalities: A Prototype Decision Support System. ISCRAM 2016 - [p8]Jennifer von Schwerin, Mike Lyons, Lukas Loos, Nicolas Billen, Michael Auer, Alexander Zipf:
Show Me the Data!: Structuring Archaeological Data to Deliver Interactive, Transparent 3D Reconstructions in a 3D WebGIS. 3D Research Challenges in Cultural Heritage 2016: 198-230 - 2015
- [j34]Enrico Steiger, Alexander Zipf:
Erstellung eines OSM-Straßengraphen mit TMC-LCL-Informationen. AGIT Journal Angew. Geoinformatik 1: 426-431 (2015) - [j33]João Porto de Albuquerque, Benjamin Herfort, Alexander Brenning, Alexander Zipf:
A geographic approach for combining social media and authoritative data towards identifying useful information for disaster management. Int. J. Geogr. Inf. Sci. 29(4): 667-689 (2015) - [j32]René Westerholt, Bernd Resch, Alexander Zipf:
A local scale-sensitive indicator of spatial autocorrelation for assessing high- and low-value clusters in multiscale datasets. Int. J. Geogr. Inf. Sci. 29(5): 868-887 (2015) - [j31]Helen Dorn, Tobias Törnros, Alexander Zipf:
Quality Evaluation of VGI Using Authoritative Data - A Comparison with Land Use Data in Southern Germany. ISPRS Int. J. Geo Inf. 4(3): 1657-1671 (2015) - [j30]Enrico Steiger, João Porto de Albuquerque, Alexander Zipf:
An Advanced Systematic Literature Review on Spatiotemporal Analyses of Twitter Data. Trans. GIS 19(6): 809-834 (2015) - [j29]Jamal Jokar Arsanjani, Peter Mooney, Marco Helbich, Alexander Zipf:
An Exploration of Future Patterns of the Contributions to OpenStreetMap and Development of a Contribution Index. Trans. GIS 19(6): 896-914 (2015) - [j28]Yeran Sun, Hongchao Fan, Mohamed Bakillah, Alexander Zipf:
Road-based travel recommendation using geo-tagged images. Comput. Environ. Urban Syst. 53: 110-122 (2015) - [j27]Enrico Steiger, René Westerholt, Bernd Resch, Alexander Zipf:
Twitter as an indicator for whereabouts of people? Correlating Twitter with UK census data. Comput. Environ. Urban Syst. 54: 255-265 (2015) - [c31]Andrea Ballatore, Alexander Zipf:
A Conceptual Quality Framework for Volunteered Geographic Information. COSIT 2015: 89-107 - [c30]Benjamin Herfort, Melanie Eckle, João Porto de Albuquerque, Alexander Zipf:
Towards assessing the quality of volunteered geographic information from OpenStreetMap for identifying critical infrastructures. ISCRAM 2015 - [p7]Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney, Marco Helbich:
An Introduction to OpenStreetMap in Geographic Information Science: Experiences, Research, and Applications. OpenStreetMap in GIScience 2015: 1-15 - [p6]Jamal Jokar Arsanjani, Peter Mooney, Alexander Zipf, Anne Schauss:
Quality Assessment of the Contributed Land Use Information from OpenStreetMap Versus Authoritative Datasets. OpenStreetMap in GIScience 2015: 37-58 - [e3]Jamal Jokar Arsanjani, Alexander Zipf, Peter Mooney, Marco Helbich:
OpenStreetMap in GIScience - Experiences, Research, and Applications. Lecture Notes in Geoinformation and Cartography, Springer 2015, ISBN 978-3-319-14279-1 [contents] - 2014
- [j26]Hongchao Fan, Alexander Zipf, Qing Fu, Pascal Neis:
Quality assessment for building footprints data on OpenStreetMap. Int. J. Geogr. Inf. Sci. 28(4): 700-719 (2014) - [j25]Mohamed Bakillah, Steve H. L. Liang, Amin Mobasheri, Jamal Jokar Arsanjani, Alexander Zipf:
Fine-resolution population mapping using OpenStreetMap points-of-interest. Int. J. Geogr. Inf. Sci. 28(9): 1940-1963 (2014) - [j24]John P. Wilson, Qiming Zhou, Alexander Zipf:
Taking Stock. Trans. GIS 18(6): 793-798 (2014) - [j23]Christopher Barron, Pascal Neis, Alexander Zipf:
A Comprehensive Framework for Intrinsic OpenStreetMap Quality Analysis. Trans. GIS 18(6): 877-895 (2014) - [c29]Hongchao Fan, Alexander Zipf, Qing Fu:
Estimation of Building Types on OpenStreetMap Based on Urban Morphology Analysis. AGILE Conf. 2014: 19-35 - [c28]Benjamin Herfort, João Porto de Albuquerque, Svend-Jonas Schelhorn, Alexander Zipf:
Exploring the Geographical Relations Between Social Media and Flood Phenomena to Improve Situational Awareness - A Study About the River Elbe Flood in June 2013. AGILE Conf. 2014: 55-71 - [c27]Enrico Steiger, Timothy Ellersiek, Alexander Zipf:
Explorative public transport flow analysis from uncertain social media data. GEOGROWD 2014: 1-7 - [c26]Johannes Lauer, Ludwig Richter, Timothy Ellersiek, Alexander Zipf:
TeleAgro+: analysis framework for agricultural telematics data. IWCTS@SIGSPATIAL 2014: 47-53 - [c25]Benjamin Herfort, João Porto de Albuquerque, Svend-Jonas Schelhorn, Alexander Zipf:
Does the spatiotemporal distribution of tweets match the spatiotemporal distribution of flood phenomena? A study about the River Elbe Flood in June 2013. ISCRAM 2014 - [c24]Svend-Jonas Schelhorn, Benjamin Herfort, Richard Leiner, Alexander Zipf, João Porto de Albuquerque:
Identifying elements at risk from OpenStreetMap: The case of flooding. ISCRAM 2014 - 2013
- [j22]Pascal Neis, Dennis Zielstra, Alexander Zipf:
Comparison of Volunteered Geographic Information Data Contributions and Community Development for Selected World Regions. Future Internet 5(2): 282-300 (2013) - [j21]Jamal Jokar Arsanjani, Marco Helbich, Mohamed Bakillah, Julian Hagenauer, Alexander Zipf:
Toward mapping land-use patterns from volunteered geographic information. Int. J. Geogr. Inf. Sci. 27(12): 2264-2278 (2013) - [j20]Mohamed Bakillah, Steve H. L. Liang, Alexander Zipf, Jamal Jokar Arsanjani:
Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model. ISPRS Int. J. Geo Inf. 2(3): 766-796 (2013) - [j19]Mohamed Bakillah, Steve H. L. Liang, Alexander Zipf, Mir Abolfazl Mostafavi:
A dynamic and context-aware semantic mediation service for discovering and fusion of heterogeneous sensor data. J. Spatial Inf. Sci. 6(1): 155-185 (2013) - [j18]John P. Wilson, David O'Sullivan, Alexander Zipf:
Taking Stock. Trans. GIS 17(6): 785-790 (2013) - [c23]Mohamed Bakillah, Alexander Zipf, Steve H. L. Liang:
Publish/Subscribe System Based on Event Calculus to Support Real-Time Multi-Agent Evacuation Simulation. AGILE Conf. 2013: 337-352 - [c22]Flávio Eduardo Aoki Horita, Lívia Castro Degrossi, Luiz Fernando Ferreira Gomes de Assis, Alexander Zipf, João Porto de Albuquerque:
The use of Volunteered Geographic Information (VGI) and Crowdsourcing in Disaster Management: a Systematic Literature Review. AMCIS 2013 - [c21]Johannes Lauer, Nicolas Billen, Alexander Zipf:
Processing crowd sourced sensor data: from data acquisition to application. CTS@SIGSPATIAL 2013: 43 - [c20]Nicolas Billen, Johannes Lauer, Alexander Zipf:
A mobile sensor data acquisition and evaluation framework for crowd sourcing data. GEOGROWD 2013: 47-54 - [p5]Yeran Sun, Hongchao Fan, Marco Helbich, Alexander Zipf:
Analyzing Human Activities Through Volunteered Geographic Information: Using Flickr to Analyze Spatial and Temporal Pattern of Tourist Accommodation. Progress in Location-Based Services 2013: 57-69 - [p4]Marcus Goetz, Alexander Zipf:
Indoor Route Planning with Volunteered Geographic Information on a (Mobile) Web-Based Platform. Progress in Location-Based Services 2013: 211-231 - [p3]Ming Li, Marcus Goetz, Hongchao Fan, Alexander Zipf:
Adapting OSM-3D to the Mobile World: Challenges and Potentials. Progress in Location-Based Services 2013: 471-489 - 2012
- [j17]Pascal Neis, Dennis Zielstra, Alexander Zipf:
The Street Network Evolution of Crowdsourced Maps: OpenStreetMap in Germany 2007-2011. Future Internet 4(1): 1-21 (2012) - [j16]Marcus Goetz, Alexander Zipf:
Towards Defining a Framework for the Automatic Derivation of 3D CityGML Models from Volunteered Geographic Information. Int. J. 3 D Inf. Model. 1(2): 1-16 (2012) - [j15]Pascal Neis, Alexander Zipf:
Analyzing the Contributor Activity of a Volunteered Geographic Information Project - The Case of OpenStreetMap. ISPRS Int. J. Geo Inf. 1(2): 146-165 (2012) - [j14]Marcus Goetz, Alexander Zipf:
Using Crowdsourced Geodata for Agent-Based Indoor Evacuation Simulations. ISPRS Int. J. Geo Inf. 1(2): 186-208 (2012) - [j13]Pascal Neis, Marcus Goetz, Alexander Zipf:
Towards Automatic Vandalism Detection in OpenStreetMap. ISPRS Int. J. Geo Inf. 1(3): 315-332 (2012) - [j12]Mohamed Bakillah, Mir Abolfazl Mostafavi, Steve H. L. Liang, Alexander Zipf:
Real time query propagation strategies with Lightweight Coordination Calculus (LCC) for ad hoc networks of geospatial databases. J. Netw. Comput. Appl. 35(6): 1918-1933 (2012) - [j11]John P. Wilson, David O'Sullivan, Alexander Zipf:
Taking Stock. Trans. GIS 16(6): 735-740 (2012) - [j10]Andreas Jochem, Bernhard Höfle, Volker Wichmann, Martin Rutzinger, Alexander Zipf:
Area-wide roof plane segmentation in airborne LiDAR point clouds. Comput. Environ. Urban Syst. 36(1): 54-64 (2012) - [c19]Lukas Loos, Alexander Zipf:
RIgeo.net - A Lab for Spatial Exploration of Historical Data. DH 2012: 488-490 - [p2]Alexander Zipf, Matthias Jöst:
Location-Based Services. Springer Handbook of Geographic Information 2012: 417-421 - 2011
- [j9]Marcus Goetz, Alexander Zipf:
Formal definition of a user-adaptive and length-optimal routing graph for complex indoor environments. Geo spatial Inf. Sci. 14(2): 119-128 (2011) - [c18]Sandra Lanig, Arne Schilling, Michael Auer, Bernhard Höfle, Nicolas Billen, Alexander Zipf:
Interoperable integration of high precision 3D laser data and large scale geoanalysis in a SDI for Sutra inscriptions in Sichuan (China). Geoinformatik 2011: 79-84 - 2010
- [j8]Martin Over, Arne Schilling, S. Neubauer, Alexander Zipf:
Generating web-based 3D City Models from OpenStreetMap: The current situation in Germany. Comput. Environ. Urban Syst. 34(6): 496-507 (2010) - [c17]Sandra Lanig, Alexander Zipf, Martina Klärle:
Geoprozessîerung in Erneuerbaren Energien. Geoinformatik 2010: 226-227 - [e2]Alexander Zipf, Kai Behncke, Florian Hillen, Jens Schaefermeyer:
Geoinformatik 2010 - Die Welt im Netz: Konferenzband, Kiel, Germany, March 17-19, 2010. AKA 2010, ISBN 978-3-89838-335-6 [contents]
2000 – 2009
- 2009
- [j7]Sandra Lanig, Alexander Zipf:
Interoperable processing of digital elevation models in grid infrastructures. Earth Sci. Informatics 2(1-2): 107-116 (2009) - [c16]Wolfgang Johann Eder, Alexander Zipf:
Towards interoperable atmospheric (air flow) models in Spatial Data Infrastructures using OGC Web Services - state of the art and research questions. EnviroInfo (1) 2009: 403-412 - 2008
- [j6]Pascal Neis, Alexander Zipf:
Extending the OGC OpenLS Route Service to 3D for an interoperable realisation of 3D focus maps with landmarks. J. Locat. Based Serv. 2(2): 153-174 (2008) - [c15]Holger Albert, Gernot Belger, Vinicius de Camargo, Michael Haase, Kaj Lippert, Pascal Neis, Erik Pasche, Alexander Zipf:
Interoperable Routing Services in the Context of Evacuation Schemes due to Urban Flooding. EnviroInfo 2008: 617-622 - [c14]Sandra Lanig, Arne Schilling, Beate Stollberg, Alexander Zipf:
Towards Standards-Based Processing of Digital Elevation Models for Grid Computing through Web Processing Service (WPS). ICCSA (2) 2008: 191-203 - [c13]Rüdiger Göbel, Alexander Zipf:
How to Define 3D Geoprocessing Operations for the OGC Web Processing Service (WPS)? Towards a Classification of 3D Operations. ICCSA (1) 2008: 708-723 - [e1]Liqiu Meng, Alexander Zipf, Stephan Winter:
Map-based Mobile Services - Design, Interaction and Usability. Lecture Notes in Geoinformation and Cartography, Springer 2008, ISBN 978-3-540-37109-0 [contents] - 2007
- [c12]Beate Stollberg, Alexander Zipf:
OGC Web Processing Service Interface for Web Service Orchestration Aggregating Geo-processing Services in a Bomb Threat Scenario. W2GIS 2007: 239-251 - [c11]Arne Schilling, Jens Basanow, Alexander Zipf:
Vector based Mapping of Polygons on Irregular Terrain Meshes for Web 3D Map Services. WEBIST (2) 2007: 198-205 - [p1]Albrecht Weiser, Alexander Zipf:
A visual editor for OGC SLD files for automating the configuration of WMS and mobile map applications. Location Based Services and TeleCartography 2007: 265-278 - 2006
- [j5]Bin Jiang, Alexander Zipf:
How do location-based services hit Google? Comput. Environ. Urban Syst. 30(6): 709-711 (2006) - [j4]Alexander Zipf, Matthias Jöst:
Implementing adaptive mobile GI services based on ontologies: Examples from pedestrian navigation support. Comput. Environ. Urban Syst. 30(6): 784-798 (2006) - 2005
- [c10]Sven Tschirner, Alexander Zipf:
Finding geodata that otherwise would have been forgotten - GeoXchange: a SDI-based portal for sharing free geodata. GIR 2005: 39-44 - [c9]Alexander Zipf, Liqiu Meng:
MOBILE MAPS 2005 interactivity and usability of map-based mobile services. Mobile HCI 2005: 361-362 - [c8]Alexander Zipf:
Using Styled Layer Descriptor (SLD) for the Dynamic Generation of User- and Context-Adaptive Mobile Maps - A Technical Framework. W2GIS 2005: 183-193 - 2004
- [j3]Jochen Häußler, Alexander Zipf:
Supporting Multi-Modal Interfaces for Adaptive Tour Planning. Ann. GIS 10(2): 117-128 (2004) - 2003
- [c7]Barbara Schmidt-Belz, Heimo Laamanen, Stefan Poslad, Alexander Zipf:
Location-based Mobile Tourist Services - First User Experiences. ENTER 2003: 115-123 - [c6]Alexander Zipf, Richard Leiner:
Anforderungen an mobile Geo-Datenbanken für Katastropheninformations- und -warnsysteme. Database Mechanisms for Mobile Applications 2003: 9-17 - [c5]Arne Schilling, Alexander Zipf:
Generation of VRML city models for focus based tour animations: integration, modeling and presentation of heterogeneous geo-data sources. Web3D 2003: 39-48 - 2002
- [j2]Steffen Staab, Hannes Werthner, Francesco Ricci, Alexander Zipf, Ulrike Gretzel, Daniel R. Fesenmaier, Cécile Paris, Craig A. Knoblock:
Intelligent Systems for Tourism. IEEE Intell. Syst. 17(6): 53-64 (2002) - [j1]Alexander Zipf, Kai-Florian Richter:
Using Focus Maps to Ease Map Reading - Developing Smart Applications for Mobile Devices. Künstliche Intell. 16(4): 35-37 (2002) - [c4]Alexander Zipf:
User-Adaptive Maps for Location-Based Services (LBS) for Tourism. ENTER 2002: 329-338 - [c3]Stefan Schmitz, Alexander Zipf, Hidir Aras:
Realisierung eines mobilen Geodatenservers für PDAs auf der Basis von Standards des OpenGIS-Consortiums. Mobile Datenbanken und Informationssysteme 2002: 23-27 - 2001
- [c2]Alexander Zipf, Rainer Malaka:
Developing Location Based Services for Tourism. The Service Providers' View. ENTER 2001: 83-92 - [c1]Alexander Zipf, Sven Krüger:
TGML - extending GML by Temporal Constructs - A Proposal for a Spatiotemporal Framework in XML. ACM-GIS 2001: 94-99
Coauthor Index
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